Il Mio Problema
iPhone's 5 year old battery had to be constantly charged.
La Mia Riparazione
very straight forward if you follow the repair manual. This was my second replacement of the 6s battery so the process went much faster this time
Il Mio Consiglio
After the phone was opened I warmed the battery side of the phone (the back side of the phone) with the hair blower a little. This made pulling adhesive strips easier. Also I did not disconnect the screen of the phone for this repair.